Electric battery.



[zu on /01 ff/@www PATENTED JULY 12, 1904.

f A, .LML,

P. J. KAMPERDYK.

ELECTRIC BATTERY.

APPLICATION FILED DEG. 26, 1902.

Si n 1| |I Ii Il ll Il Il l l| Ei gl ,I

il Il :l

/1|.||||U H. llulllllllllH. NIH .HIIIIIIIH H||l|||||.ll||ll.|l HHH HH UHIIIIH Hlllllllllllllllllllllllllnlh. H U I UNITED STATES Patented July 12, 1904.

PATENT OEETCE,

ELECTRIC BATTERYIl SPECIFICATION forming part of Letters Patent N0. 764,813, dated July 12, 1904.

Application filed December 26, 1902. Serial No. 136,518. (No model.)

T0 all whom, it may concern,.-

Be it known that I,-PIERRE JOSEPH KAM- PERDYK, a subject of the King of Belgium, residing in the city of New York, borough of Manhattan, in the county and State of New York, have invented certain new and useful Improvements in Electrodes for Electric Batteries, of which the following is a specification.

rlhe invention relates to the construction of electrodes for primary batteries,and especiallyT to the zinc or negative-pole electrode.

The object of the invention is to provide, an electrode which shall develop greater ac-- tivity through longer periods of service than any of the forms before known to me.

rIhe invention consists in certain details of construction to be hereinafter described by which the above objects are attained.

The accompanying drawings form a part of this specification and show the invention as applied to aiiat plate electrode.

Figure l is a face view of one of the electrodes, a portion being' broken away to show the construction. Fig. 2 is a vertical section on the line 2 2 in Fig. l, and Fig. 3 is acorresponding transverse section. Fig. 4 is asimilar view of a portion on a larger scale.

Similar letters of reference indicate the same parts in all the figures.

It is important to avoid as far as practicable the waste of the electrode material due to disintegration and fracture when the electrode has been reduced by the action of the exciting liquid thereon. I provide for 'sustaining the electrode and insuring conduction throughout its mass by inclosing therein a framework of incorrodible material having high conductive properties.

The electrode is shown as a fiat plate C of zinc, preferably amalgamated in the mass, containing a frame consisting of a series of copper wires C', covered by electrolysis or otherwise with a coat or plating C2 of noncorrodible,conductingmetal,as platinum. The wires are placed in the desired positions in the mold, which is then filled with the melted Zinc, entirely inclosing the wires, which thus serve as an indestructible framework to sustain the plate and maintain its plane shape until the electrode is nearly or quite exhausted in service. Besides lessening the liability of the attenuated plate to fracture the wires C/ serve to electrically connect such portions of the Zinc as remain after fracture or partial disintegration has taken place, and thus prevent the interruption of the current or action of the battery and permit the broken plate to continue in active service much longer than would be otherwise possible. The framework also serves to increase the conductivity or lessen the resistance of the electrode under all conditions.

The wires are shown as extending vertically of the plate frorn the lower edge nearly to the upper edge, where they are bent inwardly toward the center line. The ends of the several wires are brought together atthis point and protrude from the upper edge of the plate, as at C3, and serve asaconnecting means for the negative pole of the battery.

The framework may be constructed otherwise than here shown and may be of any material possessing the necessary qualities of strength and conductivity and either of a nature to resist successfull y the attacks of the exciting liquid or protected against such action by a coating or plating of conducting but incorrodible material.l

Although I have shown the electrode as a flat rectangular plate of Zinc, it will be understood that the shape is not essential and that the forni and proportions may be varied Within wide limits. The wires, extending as they do both longitudinally and transversely of the plate, serve to better strengthen the same.

I claimM A negative-pole electrode comprising a flat plate of Zinc, and a plurality of conductingwires protected against corrosion and inclosed in said plate with their ends projecting from the upper edge thereof, the said wires extending both longitudinally and transversely of In testimonytliatlelaimtlieinvention above the plate and serving to maintain the shape of set forth I allx my signature in presence of said plate when partially exhausted by the aetwo Witnesses.

tion'of an exciting agent, and as conductors PIERRE JOSEPH KAMPERDYK. 5 conneting'tlieseveralportionswhensaidplate Witnesses: Y

is fractured or partially disintegrated, and HENRY HALKETT,

the said ends serving as a negative pole. J. LAWANS. 

